– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
Gentoo Linux Security Advisory GLSA 201612-13
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
https://security.gentoo.org/
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
Severity: Normal
Title: nghttp2: Denial of Service
Date: December 05, 2016
Bugs: #574780
ID: 201612-13
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
Synopsis
========
Nghttp2 is vulnerable to a Denial of Service attack.
Background
==========
Nghttp2 is an implementation of HTTP/2 and its header compression
algorithm HPACK in C.
Affected packages
=================
——————————————————————-
Package / Vulnerable / Unaffected
——————————————————————-
1 net-libs/nghttp2 < 1.7.1 >= 1.7.1
Description
===========
Nghttpd, nghttp, and libnghttp2_asio applications do not limit the
memory usage for the incoming HTTP header field. If a peer sends a
specially crafted HTTP/2 HEADERS frame and CONTINUATION frame, they
will crash with an out of memory error.
Impact
======
A remote attacker could possibly cause a Denial of Service condition.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All nghttp2 users should upgrade to the latest version:
# emerge –sync
# emerge –ask –oneshot –verbose “>=net-libs/nghttp2-1.7.1”
References
==========
[ 1 ] CVE-2016-1544
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-1544
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/201612-13
Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users’ machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.
License
=======
Copyright 2016 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons – Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
<html>
<head>
<meta http-equiv=”content-type” content=”text/html; charset=utf-8″>
</head>
<body bgcolor=”#FFFFFF” text=”#000000″>
<p>
<meta http-equiv=”content-type” content=”text/html; charset=utf-8″>
</p>
<pre style=”color: rgb(0, 0, 0); font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; white-space: pre-wrap;”>- – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
Gentoo Linux Security Advisory GLSA 201612-13
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
<a class=”moz-txt-link-freetext” href=”https://security.gentoo.org/”>https://security.gentoo.org/</a>
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
Severity: Normal
Title: nghttp2: Denial of Service
Date: December 05, 2016
Bugs: #574780
ID: 201612-13
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
Synopsis
========
Nghttp2 is vulnerable to a Denial of Service attack.
Background
==========
Nghttp2 is an implementation of HTTP/2 and its header compression
algorithm HPACK in C.
Affected packages
=================
——————————————————————-
Package / Vulnerable / Unaffected
——————————————————————-
1 net-libs/nghttp2 < 1.7.1 >= 1.7.1
Description
===========
Nghttpd, nghttp, and libnghttp2_asio applications do not limit the
memory usage for the incoming HTTP header field. If a peer sends a
specially crafted HTTP/2 HEADERS frame and CONTINUATION frame, they
will crash with an out of memory error.
Impact
======
A remote attacker could possibly cause a Denial of Service condition.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All nghttp2 users should upgrade to the latest version:
# emerge –sync
# emerge –ask –oneshot –verbose “>=net-libs/nghttp2-1.7.1”
References
==========
[ 1 ] CVE-2016-1544
<a class=”moz-txt-link-freetext” href=”http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-1544″>http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-1544</a>
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
<a class=”moz-txt-link-freetext” href=”https://security.gentoo.org/glsa/201612-13″>https://security.gentoo.org/glsa/201612-13</a>
Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users’ machines is of utmost
importance to us. Any security concerns should be addressed to
<a class=”moz-txt-link-abbreviated” href=”mailto:security@gentoo.org”>security@gentoo.org</a> or alternatively, you may file a bug at
<a class=”moz-txt-link-freetext” href=”https://bugs.gentoo.org”>https://bugs.gentoo.org</a>.
License
=======
Copyright 2016 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons – Attribution / Share Alike license.
<a class=”moz-txt-link-freetext” href=”http://creativecommons.org/licenses/by-sa/2.5″>http://creativecommons.org/licenses/by-sa/2.5</a></pre>
</body>
</html>
—–BEGIN PGP SIGNATURE—–
Version: GnuPG v2
iQJ8BAEBCgBmBQJYRMG8XxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w
ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXQ1OTcyRDI4NDhFOEE0NDYwRTdERTY4QUM5
RjI4QkQ4QkQxRTM5NUZGAAoJEJ8ovYvR45X/EjcQAJOJhvfGaCcxCVA+Zp/bzSLo
FXdBjjdBwnMLh9cwBZ8kEyHtAkqV6it1IVvYRMzQaZ+cDkCSfBtVxNqhL7kPg7WR
/gHKSLXBHqcJBL5wjgVLlGeHEeh4LJq8Q+guq55FNfsSWBDowiGUWsbvsx8OPBmc
XH4iviqDZOI87/DW5cdAmRtgssEswHPpI0bY0gO2QfD1YZiDQL1uFeQ/QbUmmTS3
N0x5fmkhkkKrYC9EzMUPI1a+RnRxXlKo4dZSFAsMbWg3J/zhscM3LanUf+9Xxz+h
zRxYpTgcaOboCygRnv11O+rgjw2SwPJOY+pXQrRCwbILk70hQwmW47JLyBUWI4BL
QHkjovUu864/WiiXxuxkGbbNhQX7i4B4BsTCfaobJffYlecspuhRIhBnNNseA3Fa
2mTO7w+7PdQq+ZdHD89wYMQBjV8dYVCRI8eByD5XAynfRFBZmsdwCE+4VEb6cfLs
GvlFnuHTQvFTbrwu9X+uzxmEDy82A3RtV4MBI6aO2LlLJxUsLHq1kBFpIxeP/OQv
BYgwb3dWfkLdhEpqdtQipY2vhnyh8rbotzROzUzd3cnS2QrftEv1O7wn8cGsQffK
pdY7QXhPdgSg+usHfGrEFUlEeehXiRaE0Eeg1N0pzb++cq2Vmi7lhW09LjH9O8ef
HRj1Ay09sMxqiQyTSWoS
=9nxu
—–END PGP SIGNATURE—–
